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(Nd Model.) 2 sheets-snm 1.

E. W. LEONARD :E J. STEVENS. MACHINE POR BENDING PAIL BOTTOMS.

atented Jan. Z6., 1886.

(No Model.)

. 2 Sheets-Sheet 2 H. W. LEONARD 8a J. STEVENS. MACHINE FOR BENDING PAILBO'ITOMS. A No. 335,079.

Patented Jan. 26, 1886.

NITED HENRY W. LEONARD, OF SYRAOUSE, AND JOHN STEVENS, OF PORT BYRON,ASSIGNORS TO THE SYRACUSE FIBRE WARE COMPANY, OF SYRAOUSE,

NEW YORK.

MACHINE FOR BENDING PAlL-BOTTOlt/S.

SPECIFICATION forming part of Letters Patent No. 335,079, dated `Tanuary26,1886.

Application filed July 21, 1884. Serial No. 138,384.

(No model.)

To a/ZZ whom it may concern:

Be it known that we, HENRY W. LEONARD and JOHN STEVENS, residing,respectively, at Syracuse, in the county of Onondaga and State of NewYork, and Port Byron, in the county of Cayuga and State of New York,have invented new and useful Improvements in Machines for BendingPailBottoms, of which the following is a specification.

The object of this invention is to produce a machine whereby the bottomscan be attached to pails constructed of paper-pulp or similar material.These pails are provided near their lower edges, on their inner sides,with an an- 1 5 nular depression or groove, which receives the edge ofthe bottom. The latter is constructed of straw-board, pasteboard, orsimilar material, and in order to introduce it into the groove of thepail the bottom must be sprung 2o or bent to such an extent that thepail can be slipped over the bottom until the edges of the latter enterthe groove of the pail, when, by releasing the bottom, the latter ispermitted to expand and seat itself in the groove of the z5 pail.

Our improved machine is designed to bend or spring the bottompreparatory to inserting it into the groove of the pail 5 and ourinvention consists of the improvements in the con- 3o struction of themachine which will be here inafter fully set forth, and pointed out inthe claims.

In the accompanying drawings, consisting of two sheets, Figure lis aside elevation, and Fig. 2 a sectional elevation, of our improvedmachine. Fig. 3 is a front elevation of the upper part of the machine.Figs. 4 and 5 are horizontal sections in lines x :o and y y, Fig. 2,respectively. Fig. 6 is a sectional elevation 4o of the follower andsupport by which the bottom is bent. Fig. 7 is a top plan view ofthefollower. Figs. 8 and 9 are horizontal sections in lines at a: and y y,Fig. 6, respectively. Fig. 10 is aperspective view of one of thepressuresections of the follower.

Like letters of reference refer to like parts in the several gures.

A represents the standard or column to which the operative parts of themachine are attached, and which consists of a tube, a, and heads e a?,secured together by a tie-rod, a3.

B represents the support on which the bottom is placed, and O thefollower, which operates in conjunction with the support B in bendingthe bottom.

c represents a rod or stem, to the lower end of which the follower O isattached, and which is guided in brackets or supports (l d', which aresecured to the column A.

The support B is provided on its upper side with a concave recess, b,into which the bottom is forced by the follower C.

@represents a rod extending downwardly from the support B and secured ina bracket, E, which is attached to the column A and rests upon a collar,e, secured to the column, so that the bracket E and support B, attachedthereto, can be turned on the column, in order to bring the support Bunderneath the follower O or move it from under thc follower, as may bedesired.

e2 is a stop or projection formed on thelower side of the bracket E andprojecting into a segment, e3, formed in the upper side ofthe collar e',so as to limit the swingingmovement of the bracket E on the column A. Y

F represents a dished head secured to the lower end of the rod c, andprovided at its upper edge with a marginal iiange,f.

F represents a downward continuation of the head F, secured to the lowerside of the latter by screws f.

G represents a circular plate secured. to the lower side of the head Fby screws g, and provided with a marginal flange, g', projecting beyondthe edge of the head F.

H represents an angular collar surrounding the head F and the plate Gr.

h represent vertical rods secured with their lower ends in the marginalflange g of the plate G and passing loosely through the horizontalportion ofthe angular collarand through the marginal flange f of thehead F. The rods h are provided above the flange f with screwnuts h',which are so adjusted on the rods h 'that they will bear against theflange f when the follower C is elevated, as represented in Fi 2.

'ig represent spiral or other suitable springs ,interposed between theange f and the ring H.

j represents a pin formed centrally on the lower side of the plate G.

K represent the movable pressure-sections, arranged on the lower side ofthe plate G around the pinj, and resting with their outer ends at 7cagainst the lower edge of the ring H.

Z represents a ring, of wire or other suitable material, arranged on thesections K, and attached to the latter by staples Z.

Z2 are bolts attached to the ring Zand extending upwardly through theplate G and head F, and provided above the latter with screwnuts Z3,which are so adjusted that they will rest on the head F when thefollower C is in an elevated position, as represented in Fig. 2.

m represents a covering, of rubber, leather, or other exible material,extending over the lower surface of the sections K, and secured with itsouter edge to the outer sides thereof, as indicated at m in Fig. 6.

represents the bottom resting on the sup port B, and N represents thepail provided nearits lower edge with an annular groove or depression,n.

O represent toggle-levers secured to a horv izontal shaft, o,which issupported in bearings o2, formed on the upper bracket, d.

oa represent links which connect the togglelevers O with a sleeve, o4,secured to the rod c.

P represents a hand-lever secured to the shaft o', for raising andlowering the follower C by means of the togglebars.

Q represents a weight, which is attached to the sleeve o4 by a cord, q,running around rollers q', and which serves to elevate the follower Owhen the hand-lever P is released.

Vhen the follower C is in its elevated p0- sition, as represented inFig.'2, the springs t' hold the ring H down against the flange g of theplate G, whereby the outer ends of the pressure-segments K are depressedand their inner ends are elevated, as clearly shown in Fig. 2.

ln order to apply the bottom and pail to the support B, the latter isswung away from under the follower C, as represented by dotted lines inFig. 5. The bottom is then placed on the support B and the pail slippedover the support and bottom as far as it will go, as represented in Fig.2. In this position of the parts the groove n is located above thebottom a. The support B is now swung under the follower C, and thelatter is lowered by moving the hand-lever I forward. The follower Cissmaller than the small end of the pail and enters the same. As the outerends of the pressure-sections are lower than their inner ends, thefollower comes in contact with the bottom n near its periphery., As thedownward movement of the follower C continues,

lower sides of the pressure-sections are made convex, to correspond withthe concave form of the recess b. In this manner the pail-bottom ispressed or bent gradually from its periphery toward its center, wherebythe de sired curved form is imparted to the bottom without causing thebottom to become wrinkled or puckered.

Vhen the bottom has been bent as shown in Fig. 6, its diameter isreduced to such an extent that the pail can be slipped down so as toengage with its groove n over the edge of thebottom. The follower G isnow raised,

V.whereby the bottom is permitted to spring outwardly and expandsufficiently to seat itself firmly in the groove of the pail, whileretaining a certain curvature, which renders the bottom strong andrigid. The support B is now swung away from under the follower, and thepail,with the bottom secured therein, is lifted from the support, whenthe latter is ready for another operation. l

The exible covering m covers the joints between the severalpressure-sections K, and forms a smooth convex surface when the followerC is pressed against the pail-bottom.

We claim as our inventionl. In a machine for bending pail-bottoms, thecombination, with a concave support, B, of a follower, C, provided withmovable pressure-sections adapted to come in contact with the bottomnear its periphery, and to gradually close against the bottom from itsperiphery toward its center, substantially as set forth.

2. In a machine for bending pail-bottoms, the combination, with aconcave head-support, of a follower provided with movable convexpressure-sections, substantially as set forth.

3. In a machine for bendingpail-bottoms, the combination, with a concavesupport, B, of a follower, C, provided with movable pressure-sections Kand a flexible covering, m, substantially as set forth.

4. In a machine for bending pail-bottoms, a follower composed of theheads F F G, movable ring H', interposed springs z, rod h, andpressure-sections K, attached loosely to said head, substantially as setforth.

5. In a follower, the combination, with the heads F F G, of the movablering H, rods h, springs t', pressure-sections K, ring Z, and rods Z2,substantially as set forth.

IOO

6. The combination, with the standard A rod c, togglebars O o3, andhand-lever P, suband follower C, of the concave support B, stantially asset forth. bracket E,turning on said standard, and a stop fitness ourhands this 7th day of May, 1884. whereby the movement of the bracket onthe HENRY W. LEONARD.

5 standard is limited, substantially as set forth. JOHN STEVENS.

7. The combination, with the standard A, provided with `guides d d', andthe concave support B, of the follower C, attached to the 'itnesses:

AUsTIN D. COOK, EDWARD C. WARD.

